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-rw-r--r--src/play-button.c422
1 files changed, 212 insertions, 210 deletions
diff --git a/src/play-button.c b/src/play-button.c
index 35b1dc8..2ee304a 100644
--- a/src/play-button.c
+++ b/src/play-button.c
@@ -20,7 +20,7 @@ with this program. If not, see <http://www.gnu.org/licenses/>.
Uses code from ctk
*/
-#ifdef HAVE_CONFIG_H int x = button->allocation.x + X;
+#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
@@ -104,215 +104,6 @@ static void draw (GtkWidget* button, cairo_t *cr);
G_DEFINE_TYPE (PlayButton, play_button, GTK_TYPE_MENU_ITEM);
-/// internal helper functions //////////////////////////////////////////////////
-
-
-static inline void
-_blurinner (guchar* pixel,
- gint* zR,
- gint* zG,
- gint* zB,
- gint* zA,
- gint alpha,
- gint aprec,
- gint zprec)
-{
- gint R;
- gint G;
- gint B;
- guchar A;
-
- R = *pixel;
- G = *(pixel + 1);
- B = *(pixel + 2);
- A = *(pixel + 3);
-
- *zR += (alpha * ((R << zprec) - *zR)) >> aprec;
- *zG += (alpha * ((G << zprec) - *zG)) >> aprec;
- *zB += (alpha * ((B << zprec) - *zB)) >> aprec;
- *zA += (alpha * ((A << zprec) - *zA)) >> aprec;
-
- *pixel = *zR >> zprec;
- *(pixel + 1) = *zG >> zprec;
- *(pixel + 2) = *zB >> zprec;
- *(pixel + 3) = *zA >> zprec;
-}
-
-static inline void
-_blurrow (guchar* pixels,
- gint width,
- gint height,
- gint channels,
- gint line,
- gint alpha,
- gint aprec,
- gint zprec)
-{
- gint zR;
- gint zG;
- gint zB;
- gint zA;
- gint index;
- guchar* scanline;
-
- scanline = &(pixels[line * width * channels]);
-
- zR = *scanline << zprec;
- zG = *(scanline + 1) << zprec;
- zB = *(scanline + 2) << zprec;
- zA = *(scanline + 3) << zprec;
-
- for (index = 0; index < width; index ++)
- _blurinner (&scanline[index * channels],
- &zR,
- &zG,
- &zB,
- &zA,
- alpha,
- aprec,
- zprec);
-
- for (index = width - 2; index >= 0; index--)
- _blurinner (&scanline[index * channels],
- &zR,
- &zG,
- &zB,
- &zA,
- alpha,
- aprec,
- zprec);
-}
-
-static inline void
-_blurcol (guchar* pixels,
- gint width,
- gint height,
- gint channels,
- gint x,
- gint alpha,
- gint aprec,
- gint zprec)
-{
- gint zR;
- gint zG;
- gint zB;
- gint zA;
- gint index;
- guchar* ptr;
-
- ptr = pixels;
-
- ptr += x * channels;
-
- zR = *((guchar*) ptr ) << zprec;
- zG = *((guchar*) ptr + 1) << zprec;
- zB = *((guchar*) ptr + 2) << zprec;
- zA = *((guchar*) ptr + 3) << zprec;
-
- for (index = width; index < (height - 1) * width; index += width)
- _blurinner ((guchar*) &ptr[index * channels],
- &zR,
- &zG,
- &zB,
- &zA,
- alpha,
- aprec,
- zprec);
-
- for (index = (height - 2) * width; index >= 0; index -= width)
- _blurinner ((guchar*) &ptr[index * channels],
- &zR,
- &zG,
- &zB,
- &zA,
- alpha,
- aprec,
- zprec);
-}
-
-void
-_expblur (guchar* pixels,
- gint width,
- gint height,
- gint channels,
- gint radius,
- gint aprec,
- gint zprec)
-{
- gint alpha;
- gint row = 0;
- gint col = 0;
-
- if (radius < 1)
- return;
-
- // calculate the alpha such that 90% of
- // the kernel is within the radius.
- // (Kernel extends to infinity)
- alpha = (gint) ((1 << aprec) * (1.0f - expf (-2.3f / (radius + 1.f))));
-
- for (; row < height; row++)
- _blurrow (pixels,
- width,
- height,
- channels,
- row,
- alpha,
- aprec,
- zprec);
-
- for(; col < width; col++)
- _blurcol (pixels,
- width,
- height,
- channels,
- col,
- alpha,
- aprec,
- zprec);
-
- return;
-}
-
-void
-_surface_blur (cairo_surface_t* surface,
- guint radius)
-{
- guchar* pixels;
- guint width;
- guint height;
- cairo_format_t format;
-
- // before we mess with the surface execute any pending drawing
- cairo_surface_flush (surface);
-
- pixels = cairo_image_surface_get_data (surface);
- width = cairo_image_surface_get_width (surface);
- height = cairo_image_surface_get_height (surface);
- format = cairo_image_surface_get_format (surface);
-
- switch (format)
- {
- case CAIRO_FORMAT_ARGB32:
- _expblur (pixels, width, height, 4, radius, 16, 7);
- break;
-
- case CAIRO_FORMAT_RGB24:
- _expblur (pixels, width, height, 3, radius, 16, 7);
- break;
-
- case CAIRO_FORMAT_A8:
- _expblur (pixels, width, height, 1, radius, 16, 7);
- break;
-
- default :
- // do nothing
- break;
- }
-
- // inform cairo we altered the surfaces contents
- cairo_surface_mark_dirty (surface);
-}
/// GObject functions //////////////////////////////////////////////////////////
@@ -491,6 +282,8 @@ play_button_set_style(GtkWidget* button, GtkStyle* style)
priv->foreground_colour_bg = style->bg[GTK_STATE_NORMAL];
}
+/// internal helper functions //////////////////////////////////////////////////
+
static void
draw_gradient (cairo_t* cr,
double x,
@@ -926,6 +719,213 @@ _color_shade (const CairoColorRGB *a, float k, CairoColorRGB *b)
b->b = blue;
}
+static inline void
+_blurinner (guchar* pixel,
+ gint* zR,
+ gint* zG,
+ gint* zB,
+ gint* zA,
+ gint alpha,
+ gint aprec,
+ gint zprec)
+{
+ gint R;
+ gint G;
+ gint B;
+ guchar A;
+
+ R = *pixel;
+ G = *(pixel + 1);
+ B = *(pixel + 2);
+ A = *(pixel + 3);
+
+ *zR += (alpha * ((R << zprec) - *zR)) >> aprec;
+ *zG += (alpha * ((G << zprec) - *zG)) >> aprec;
+ *zB += (alpha * ((B << zprec) - *zB)) >> aprec;
+ *zA += (alpha * ((A << zprec) - *zA)) >> aprec;
+
+ *pixel = *zR >> zprec;
+ *(pixel + 1) = *zG >> zprec;
+ *(pixel + 2) = *zB >> zprec;
+ *(pixel + 3) = *zA >> zprec;
+}
+
+static inline void
+_blurrow (guchar* pixels,
+ gint width,
+ gint height,
+ gint channels,
+ gint line,
+ gint alpha,
+ gint aprec,
+ gint zprec)
+{
+ gint zR;
+ gint zG;
+ gint zB;
+ gint zA;
+ gint index;
+ guchar* scanline;
+
+ scanline = &(pixels[line * width * channels]);
+
+ zR = *scanline << zprec;
+ zG = *(scanline + 1) << zprec;
+ zB = *(scanline + 2) << zprec;
+ zA = *(scanline + 3) << zprec;
+
+ for (index = 0; index < width; index ++)
+ _blurinner (&scanline[index * channels],
+ &zR,
+ &zG,
+ &zB,
+ &zA,
+ alpha,
+ aprec,
+ zprec);
+
+ for (index = width - 2; index >= 0; index--)
+ _blurinner (&scanline[index * channels],
+ &zR,
+ &zG,
+ &zB,
+ &zA,
+ alpha,
+ aprec,
+ zprec);
+}
+
+static inline void
+_blurcol (guchar* pixels,
+ gint width,
+ gint height,
+ gint channels,
+ gint x,
+ gint alpha,
+ gint aprec,
+ gint zprec)
+{
+ gint zR;
+ gint zG;
+ gint zB;
+ gint zA;
+ gint index;
+ guchar* ptr;
+
+ ptr = pixels;
+
+ ptr += x * channels;
+
+ zR = *((guchar*) ptr ) << zprec;
+ zG = *((guchar*) ptr + 1) << zprec;
+ zB = *((guchar*) ptr + 2) << zprec;
+ zA = *((guchar*) ptr + 3) << zprec;
+
+ for (index = width; index < (height - 1) * width; index += width)
+ _blurinner ((guchar*) &ptr[index * channels],
+ &zR,
+ &zG,
+ &zB,
+ &zA,
+ alpha,
+ aprec,
+ zprec);
+
+ for (index = (height - 2) * width; index >= 0; index -= width)
+ _blurinner ((guchar*) &ptr[index * channels],
+ &zR,
+ &zG,
+ &zB,
+ &zA,
+ alpha,
+ aprec,
+ zprec);
+}
+
+void
+_expblur (guchar* pixels,
+ gint width,
+ gint height,
+ gint channels,
+ gint radius,
+ gint aprec,
+ gint zprec)
+{
+ gint alpha;
+ gint row = 0;
+ gint col = 0;
+
+ if (radius < 1)
+ return;
+
+ // calculate the alpha such that 90% of
+ // the kernel is within the radius.
+ // (Kernel extends to infinity)
+ alpha = (gint) ((1 << aprec) * (1.0f - expf (-2.3f / (radius + 1.f))));
+
+ for (; row < height; row++)
+ _blurrow (pixels,
+ width,
+ height,
+ channels,
+ row,
+ alpha,
+ aprec,
+ zprec);
+
+ for(; col < width; col++)
+ _blurcol (pixels,
+ width,
+ height,
+ channels,
+ col,
+ alpha,
+ aprec,
+ zprec);
+
+ return;
+}
+
+void
+_surface_blur (cairo_surface_t* surface,
+ guint radius)
+{
+ guchar* pixels;
+ guint width;
+ guint height;
+ cairo_format_t format;
+
+ // before we mess with the surface execute any pending drawing
+ cairo_surface_flush (surface);
+
+ pixels = cairo_image_surface_get_data (surface);
+ width = cairo_image_surface_get_width (surface);
+ height = cairo_image_surface_get_height (surface);
+ format = cairo_image_surface_get_format (surface);
+
+ switch (format)
+ {
+ case CAIRO_FORMAT_ARGB32:
+ _expblur (pixels, width, height, 4, radius, 16, 7);
+ break;
+
+ case CAIRO_FORMAT_RGB24:
+ _expblur (pixels, width, height, 3, radius, 16, 7);
+ break;
+
+ case CAIRO_FORMAT_A8:
+ _expblur (pixels, width, height, 1, radius, 16, 7);
+ break;
+
+ default :
+ // do nothing
+ break;
+ }
+
+ // inform cairo we altered the surfaces contents
+ cairo_surface_mark_dirty (surface);
+}
+
static void
draw (GtkWidget* button, cairo_t *cr)
{
@@ -1200,6 +1200,8 @@ draw (GtkWidget* button, cairo_t *cr)
}
}
+
+
/**
* play_button_new:
* @returns: a new #PlayButton.
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-17 07:01:35 +0000